Home / 290,781,540.80-436,410,256.80-288,514,059.20

Finding the Fourth Proportional to 290,781,540.80, 436,410,256.80 and 288,514,059.20

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Solution

The fourth proportional to 290,781,540.80, 436,410,256.80 and 288,514,059.20 is: 433,007,178.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,781,540.80 : 436,410,256.80 = 288,514,059.20 : x
  2. Step 2: Convert to fraction form
    290,781,540.80/436,410,256.80 = 288,514,059.20/x
  3. Step 3: Cross multiply
    290,781,540.80x = 436,410,256.80 × 288,514,059.20
  4. Step 4: Simplify right side
    290,781,540.80x = 125,910,494,665,882,400
  5. Step 5: Solve for x
    x = 125,910,494,665,882,400/290,781,540.80
  6. Step 6: Final answer
    x = 433,007,178.93

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.